280期：（（03,04,07,08,17,18,20,30,31,32,37,38,39,41,46,48））开：07中中中
281期：（（06,10,11,12,13,15,18,19,20,23,26,37,38,40,42,48））开：24错错错
282期：（（01,05,07,09,12,13,14,17,21,23,29,31,42,43,46,49））开：37错错错
283期：（（02,03,07,14,17,18,19,23,26,27,33,39,43,44,48,49））开：中？